Sand-settling box



E. E. BERRY.

sANDsETTLlNG Box.

. APPLICATION FILED MAR. 29'; 19191 1,407,919.

'E. E. BER-RY.

SAND SETTLING BOX. APPLICATION FILED MAR. 29. 1919.

Patented Feb.l 28, 1922.

2 SHEETS-SHEET 2.

un lg lll IHIIIHIIHHIIIII I IIIIIIII IIIIIIIIIIIIIIIlilllllllllIIJlillIIIIIIIIIIIIIIIIIIIFII [Il [HHH] zo v ., .UNITED STATES i PATENTol-rica EARL E. BERBY,V0F KENNETT SQUARE, PENNSYLVANIA, ASSIGNOB T0AIEBICAAN l ROAD MACHINERY COHIANY, INC., OF KENNETT A.' CORPORATION OFDELAWARE Specification of Letters Patent.

Appllcatlon led larok 29, 1919. Serial No. 286,069.

To all whom it'mayl Gomera:

Be it known that I, EARL E. BERRY, a citizen of the United States,residing at Kennett Square, county of Chester, and State ofPennsylvania, have invented a new and useful Improvement inSand-Settling Boxes, of whichthe following is a full,clear, and exactdescription, reference bein had to Athe accompanying drawings, whichformy a part of this s ecilication.

The o ject of my invention is to provide a sand settlin box of suchconstruction that it may be adJusted to eifect the separation of all thesandl from the water or the separation of sand of any degree ofcoarseness from the finer sand and'the water, or so that a pluralit ofsuch sand boxes may be arranged to.- eAI ct the separation of the sandinto different grades of fineness.

A preferred embodiment of the invention is shown in the accompanyingdrawings,in which Fig. 1 is a long, vsectional view, somewhatl diarammatic.

ig. 2 is'a detail face view of the water discharge end of the settlingtank.

Fig. 3 is a detail side view of this end of the tank partly broken away.

The settling tank a is of known form, comprising a wooden box which ishigher at one end than at the other. Near opposite ends of the tank turntwo sprocket whgels b and c, the lower one being driven from powerdriven mechanism not shown. An endless sprocket chain d engages bothsprocket wheels, the upper reach of the chain being maintained fromsagging by idle sprocket wheels intermediate the wheels b and c. Thesprocket chain is driven in the direction of the arrow and is rovided,on its outer face,.with flights e. he chain is vof such length -that apart of the reach thereof traveling from the lower driving sprocket tothe upper driven sprocket is more or less close to the bottom of thetank so that the flights will, during the travel of the chain, drag partway along the bottom of the tank and bank the sand toward the higherkend of the tank and convey it up theincline g` and discharge it. Theupper sprocket wheel e is mounted to turn in a bearing h which,as-shown, is adjustable toward and from the other sprocket wheel to relate the degree of sag of the chai-n. ,The armg It as well as the otherbearings for the various sprocket wheels are so mounted that allportlons of all ofsaid wheels are above the 'highest water level 1n thetank.

The 'lower end of the tank is provided with an adjustable gate and adischarge spout carried thereby, the latter maintaining the water in thetank at the level of the bottom ofthe end of the spout communicatingwith the tank: This arrangement is a novel one performlng new and usefulfunctions and wlll be dpartlcularly described; it being understoohowever, that the structural details mayy varied without departing fromthe lnventlon. l

At the lower end of the tank, upright and cross beams are arranged toform a reck are formed vertically extending grooves or `ways withinwhich the vertical edges of the gate m are slidable.

' Patented Feb. 2s, 1922.

istY

A- tangular frame-work or gate-way to which 1s bolted, at oppositesides, vertical angle bars rojecting- The gate m is cut down in height,

throughout the nerator part of its width,

to form an ove ow mouth for the escape of water (or water and sand) fromthe box, a discharge spout n being so secured .to the gate as tocommunicate with this cut-away u portion.

The gate m has secured to its outerface two vertically extending racks owhich are in engagement with two pinions p on a crossshaft g outside thebottom of the tank. The

shaft g carries ka worm-wheel r, which is driven from a worm a on anupright shaft t, the latter being equipped, at its upper end, with ahand wheel u.k Therebyy the gate m may be raised or lowered.

- The gate m should be secured tightly in the posltion to which it isadjusted. Ears v are secured at intervals to the upright angle bars jand bolts w extend through these ears' and are turned to ti htly abutagainst the gate :adjacent to its e ges. The .laterally extendi wings ofthe 'angle bars k are notche at intervals to permit the bolts w to passthroughl them and directly engagey the gate. Extending transverselyoutside the bottom part of the box is an angle bar, a: havinglugs ysecured to the lnner faec thereof and bolts a are screw-threaded throughthis wing and these lugs and en- 'ga e the gate adjacent to its loweredge.

t will be understood, therefore, that, preparatory to adjusting thevertical position'of the gate, the bolts w and .e are loosened, thehand-wheel u is turned to adjust the gate, and then the bolts w and .eare re-tightened, the ate being thereby ressed against the gate ame soas to aor a substantially water-tight joint. A l

In operation, the mixture of water and sand will be fed'into the opentop of the tank by any suitable pipe conveyance. The

sand, by reason of its higher specific gravity, will tend to settley tothe bottom, while the water and loam discharge through the overflowspout n.

If the adjustable overflow gate is inv a relatively high position, thevolume of water in the tank'is so great that' the velocity of the wateris relatively low, giving all the sand ample time to sink, so thatlittle, it any, sand will escape with the water. When the gate is in arelatively low position, the velocity of the water will be relativelygreat and the fine sand will be largely carried oil' with the outiowingwater, leaving only the coarse sand to be carried out by the movingflights. It will be appreciated that by arranging the sand settlingboxes in batteries, and feeding the mixture ofwater and sandsuccessyelythroughaseries (two or more) of boxes, the sand may beseparated into different grades, and that the positions of the gates maybe s0 adjusted as to secure any size sand that may be wanted.

Having now fully described my invention, what I claim and desire toprotect by Letters Patent is:

. A sand settling and washing apparatus comprising a relatively long boxclosed at one end, asand-discharge chute at the closed end leadingupwardly and outwardly, an adjustable overflow chute leading from theother end through which the water and chain above the water line,outwardly ex-` tending spaced lights on the chain, means between thesprocket Wheels for preventing the upper reach of sprocket chain fromsagging to throw all the slack in the lower reach, said chain havingsuicient slack to permit the end edges of the iiights to be dragged,along a portion of the bottom of the box, while one of the sprocketwheels is so positioned that the end edges of the flights are draggedalong the bottom of the discharge chute as they pass from the box.

In testimony of which invention, I have hereunto set my hand, at KennettSquare, Pa. on this 27th day ofMarch, 1919.

, EARL E. BERRY.

